Can you build an ADU in Wilmington, Los Angeles?

Yes — about 55% of Wilmington's roughly 14,498 analyzed single-family lots can add an ADU by-right. Most are zoned R1, which typically allows a detached ADU up to about 1,200 sq ft. These are zoning-only estimates; overlays like hillside, coastal, or historic can change the answer, so check your exact address for the rule that applies to your lot.

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ADU eligibility in Wilmington

Lots analyzed
14,498
Likely eligible
55%
Typical max size
1,200 sq ft
Median lot
5,297 sq ft

Typical zoning in Wilmington

The most common zones here, by number of analyzed lots. Your parcel’s zone sets which ADU rules apply.

ZoneLotsADU outlook
R16,199Allowed
M32,596Not allowed
M21,123Not allowed
C2923Needs review
RD1.5744Allowed

Eligibility is zoning-only (zoning-only (overlays excluded; see checker for per-lot verdict)). Ruleset la-2026.06. Neighborhood boundaries: Los Angeles Times / Mapping L.A. (CC BY 4.0).

Wilmington ADU questions

In most of Wilmington, yes. About 55% of its analyzed single-family lots can add an accessory dwelling unit by-right, most commonly on R1-zoned parcels. Your lot's exact answer depends on its zone, size, and any overlays — enter your address to see the rule that applies to you.

ADUs in other LA neighborhoods

Windsor SquareWinnetkaWoodland HillsAdams-NormandieArletaArlington HeightsAtwater VillageBaldwin Hills/Crenshaw

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